Analysis
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max time kernel
46s -
max time network
44s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
02-11-2020 09:10
Static task
static1
Behavioral task
behavioral1
Sample
6c7fb633e47217a514f4c739558cbc92.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
6c7fb633e47217a514f4c739558cbc92.exe
Resource
win10v20201028
General
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Target
6c7fb633e47217a514f4c739558cbc92.exe
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Size
667KB
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MD5
6c7fb633e47217a514f4c739558cbc92
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SHA1
bd7d155ffcf2d7e53f63834a873f453b3ad5783d
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SHA256
2d5d3ed366994f5e1fc9ca69d7a5bafb242ee071c1ad021b6d255f2f09b0e269
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SHA512
66f2cd1902dbd2dc56c7e5e731f133720147a1e5ef5ab4e5094cf6fa0845c2efdb0128b44148f3664aba904cab4b8266223df17647b6cdf83b1de89ad93dfb95
Malware Config
Signatures
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine Payload 4 IoCs
Processes:
resource yara_rule behavioral1/memory/364-18-0x0000000000240000-0x0000000000264000-memory.dmp family_redline behavioral1/memory/364-19-0x0000000000380000-0x00000000003A2000-memory.dmp family_redline behavioral1/memory/628-24-0x0000000003DD0000-0x0000000003DF4000-memory.dmp family_redline behavioral1/memory/628-25-0x0000000004000000-0x0000000004022000-memory.dmp family_redline -
Executes dropped EXE 2 IoCs
Processes:
bestof.exebestofd.exepid process 328 bestof.exe 628 bestofd.exe -
Loads dropped DLL 2 IoCs
Processes:
6c7fb633e47217a514f4c739558cbc92.exepid process 1688 6c7fb633e47217a514f4c739558cbc92.exe 1688 6c7fb633e47217a514f4c739558cbc92.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 18 checkip.amazonaws.com 11 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
Processes:
bestof.exedescription pid process target process PID 328 set thread context of 364 328 bestof.exe AddInProcess32.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
6c7fb633e47217a514f4c739558cbc92.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 6c7fb633e47217a514f4c739558cbc92.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 6c7fb633e47217a514f4c739558cbc92.exe -
Processes:
6c7fb633e47217a514f4c739558cbc92.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 6c7fb633e47217a514f4c739558cbc92.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 6c7fb633e47217a514f4c739558cbc92.exe -
Runs ping.exe 1 TTPs 2 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
AddInProcess32.exebestofd.exepid process 364 AddInProcess32.exe 628 bestofd.exe 364 AddInProcess32.exe 628 bestofd.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
bestof.exeAddInProcess32.exebestofd.exedescription pid process Token: SeDebugPrivilege 328 bestof.exe Token: SeDebugPrivilege 364 AddInProcess32.exe Token: SeDebugPrivilege 628 bestofd.exe -
Suspicious use of WriteProcessMemory 34 IoCs
Processes:
6c7fb633e47217a514f4c739558cbc92.exebestof.exeAddInProcess32.execmd.exebestofd.execmd.exedescription pid process target process PID 1688 wrote to memory of 328 1688 6c7fb633e47217a514f4c739558cbc92.exe bestof.exe PID 1688 wrote to memory of 328 1688 6c7fb633e47217a514f4c739558cbc92.exe bestof.exe PID 1688 wrote to memory of 328 1688 6c7fb633e47217a514f4c739558cbc92.exe bestof.exe PID 1688 wrote to memory of 328 1688 6c7fb633e47217a514f4c739558cbc92.exe bestof.exe PID 1688 wrote to memory of 628 1688 6c7fb633e47217a514f4c739558cbc92.exe bestofd.exe PID 1688 wrote to memory of 628 1688 6c7fb633e47217a514f4c739558cbc92.exe bestofd.exe PID 1688 wrote to memory of 628 1688 6c7fb633e47217a514f4c739558cbc92.exe bestofd.exe PID 1688 wrote to memory of 628 1688 6c7fb633e47217a514f4c739558cbc92.exe bestofd.exe PID 328 wrote to memory of 364 328 bestof.exe AddInProcess32.exe PID 328 wrote to memory of 364 328 bestof.exe AddInProcess32.exe PID 328 wrote to memory of 364 328 bestof.exe AddInProcess32.exe PID 328 wrote to memory of 364 328 bestof.exe AddInProcess32.exe PID 328 wrote to memory of 364 328 bestof.exe AddInProcess32.exe PID 328 wrote to memory of 364 328 bestof.exe AddInProcess32.exe PID 328 wrote to memory of 364 328 bestof.exe AddInProcess32.exe PID 328 wrote to memory of 364 328 bestof.exe AddInProcess32.exe PID 328 wrote to memory of 364 328 bestof.exe AddInProcess32.exe PID 328 wrote to memory of 364 328 bestof.exe AddInProcess32.exe PID 364 wrote to memory of 1820 364 AddInProcess32.exe cmd.exe PID 364 wrote to memory of 1820 364 AddInProcess32.exe cmd.exe PID 364 wrote to memory of 1820 364 AddInProcess32.exe cmd.exe PID 364 wrote to memory of 1820 364 AddInProcess32.exe cmd.exe PID 1820 wrote to memory of 1124 1820 cmd.exe PING.EXE PID 1820 wrote to memory of 1124 1820 cmd.exe PING.EXE PID 1820 wrote to memory of 1124 1820 cmd.exe PING.EXE PID 1820 wrote to memory of 1124 1820 cmd.exe PING.EXE PID 628 wrote to memory of 1508 628 bestofd.exe cmd.exe PID 628 wrote to memory of 1508 628 bestofd.exe cmd.exe PID 628 wrote to memory of 1508 628 bestofd.exe cmd.exe PID 628 wrote to memory of 1508 628 bestofd.exe cmd.exe PID 1508 wrote to memory of 948 1508 cmd.exe PING.EXE PID 1508 wrote to memory of 948 1508 cmd.exe PING.EXE PID 1508 wrote to memory of 948 1508 cmd.exe PING.EXE PID 1508 wrote to memory of 948 1508 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\6c7fb633e47217a514f4c739558cbc92.exe"C:\Users\Admin\AppData\Local\Temp\6c7fb633e47217a514f4c739558cbc92.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 35⤵
- Runs ping.exe
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C:\Users\Admin\AppData\Roaming\gfersesurity\bestofd.exebestofd.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 34⤵
- Runs ping.exe
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exeMD5
b77a1d58626a5d4a77202afbf717accb
SHA11a37bf11e2b75384785d05780fe17fe1167bfbb1
SHA256a0a1952f947eaea5f54da2c343da0dc0ef5cd7bc58fe27f1dbf4e7199e757a13
SHA512d12789afcdf0b6dc4dfd5c944c56466c3305b1f87670a038401e22a27ee8980b11a6039e73c4729c731dfd241fdb84c7c850c6ee2cd04bdfac6d5f5b2c8fff26
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C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exeMD5
b77a1d58626a5d4a77202afbf717accb
SHA11a37bf11e2b75384785d05780fe17fe1167bfbb1
SHA256a0a1952f947eaea5f54da2c343da0dc0ef5cd7bc58fe27f1dbf4e7199e757a13
SHA512d12789afcdf0b6dc4dfd5c944c56466c3305b1f87670a038401e22a27ee8980b11a6039e73c4729c731dfd241fdb84c7c850c6ee2cd04bdfac6d5f5b2c8fff26
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C:\Users\Admin\AppData\Roaming\gfersesurity\bestofd.exeMD5
72131adb0e2315281aae445db11e09a2
SHA1712ca2ebaa7d9bc9bbe18f7843954cfb0d22b08e
SHA2569ea7a66f0c3dc13ddfc6f05d95049dd7f641053a380578a12013db9f72367f65
SHA512bbc68fa0c586aaa7227da59848407672e7629e8f1289384add8638c21bab69d41495bcfc7881446b527e5aa4db14e1babc4f71dfee32b69705e6d3b64bf46a22
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\Users\Admin\AppData\Roaming\gfersesurity\bestof.exeMD5
b77a1d58626a5d4a77202afbf717accb
SHA11a37bf11e2b75384785d05780fe17fe1167bfbb1
SHA256a0a1952f947eaea5f54da2c343da0dc0ef5cd7bc58fe27f1dbf4e7199e757a13
SHA512d12789afcdf0b6dc4dfd5c944c56466c3305b1f87670a038401e22a27ee8980b11a6039e73c4729c731dfd241fdb84c7c850c6ee2cd04bdfac6d5f5b2c8fff26
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\Users\Admin\AppData\Roaming\gfersesurity\bestofd.exeMD5
72131adb0e2315281aae445db11e09a2
SHA1712ca2ebaa7d9bc9bbe18f7843954cfb0d22b08e
SHA2569ea7a66f0c3dc13ddfc6f05d95049dd7f641053a380578a12013db9f72367f65
SHA512bbc68fa0c586aaa7227da59848407672e7629e8f1289384add8638c21bab69d41495bcfc7881446b527e5aa4db14e1babc4f71dfee32b69705e6d3b64bf46a22
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memory/328-8-0x0000000000DE0000-0x0000000000DE1000-memory.dmpFilesize
4KB
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memory/328-4-0x0000000000000000-mapping.dmp
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memory/328-7-0x00000000739E0000-0x00000000740CE000-memory.dmpFilesize
6.9MB
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memory/364-15-0x0000000000400000-0x0000000000436000-memory.dmpFilesize
216KB
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memory/364-16-0x0000000002220000-0x0000000002231000-memory.dmpFilesize
68KB
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memory/364-19-0x0000000000380000-0x00000000003A2000-memory.dmpFilesize
136KB
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memory/364-18-0x0000000000240000-0x0000000000264000-memory.dmpFilesize
144KB
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memory/364-13-0x0000000000400000-0x0000000000436000-memory.dmpFilesize
216KB
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memory/364-14-0x000000000040CD2F-mapping.dmp
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memory/364-17-0x0000000072E90000-0x000000007357E000-memory.dmpFilesize
6.9MB
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memory/628-25-0x0000000004000000-0x0000000004022000-memory.dmpFilesize
136KB
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memory/628-23-0x0000000072E90000-0x000000007357E000-memory.dmpFilesize
6.9MB
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memory/628-24-0x0000000003DD0000-0x0000000003DF4000-memory.dmpFilesize
144KB
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memory/628-11-0x0000000000000000-mapping.dmp
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memory/628-20-0x00000000024E9000-0x00000000024EA000-memory.dmpFilesize
4KB
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memory/628-21-0x0000000003D50000-0x0000000003D61000-memory.dmpFilesize
68KB
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memory/628-22-0x0000000003D50000-0x0000000003D61000-memory.dmpFilesize
68KB
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memory/948-29-0x0000000000000000-mapping.dmp
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memory/1124-27-0x0000000000000000-mapping.dmp
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memory/1508-28-0x0000000000000000-mapping.dmp
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memory/1688-0-0x00000000024B4000-0x00000000024C5000-memory.dmpFilesize
68KB
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memory/1688-1-0x0000000002720000-0x0000000002731000-memory.dmpFilesize
68KB
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memory/1752-2-0x000007FEF7080000-0x000007FEF72FA000-memory.dmpFilesize
2.5MB
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memory/1820-26-0x0000000000000000-mapping.dmp